Odana Sashti is a festival that marks the beginning of winter. During the Odana-sasthi festival devotees dress Lord Jaganath and Balarama with starched cloth. This ceremony indicates that from that day forward, a winter covering should be given to the Lord. That covering is directly purchased from a weaver, and freshly purchased cloth is usually starched to preserve it. Also, Sri Gaurasundara accompanied by all His devotees came to see Lord Jaganath on Odana Sasthi. Musical bands with many instruments:mridangas,conch shells, bells, and more echoed all around the town and gave it a festive spirit. Their Lordships wore different sets of clothes that day and the this festival would last until the Makara-Shankrati, mid-January.
http://www.mayapur.com/2012/odana-sashti/
http://www.mayapur.com/2012/odana-sashti/